[sgl] _ATTN_TP and _ATTN_CP use message queue for broadcast on CPU (#22205)

python/sglang/srt/distributed/parallel_state.py

@@ -45,7 +45,6 @@ from sglang.srt.compilation.piecewise_context_manager import is_in_piecewise_cud
 from sglang.srt.distributed.utils import set_global_tcp_store
 from sglang.srt.environ import envs
 from sglang.srt.utils import (
-    get_bool_env_var,
     get_current_device_stream_fast,
     get_int_env_var,
     is_cpu,
@@ -1801,9 +1800,7 @@ def initialize_model_parallel(
         group_ranks,
         get_world_group().local_rank,
         backend,
-        use_message_queue_broadcaster=get_bool_env_var(
-            "SGLANG_USE_MESSAGE_QUEUE_BROADCASTER", "true"
-        ),
+        use_message_queue_broadcaster=envs.SGLANG_USE_MESSAGE_QUEUE_BROADCASTER.get(),
         group_name="tp",
     )
 
@@ -1816,9 +1813,7 @@ def initialize_model_parallel(
             group_ranks,
             get_world_group().local_rank,
             backend,
-            use_message_queue_broadcaster=get_bool_env_var(
-                "SGLANG_USE_MESSAGE_QUEUE_BROADCASTER", "true"
-            ),
+            use_message_queue_broadcaster=envs.SGLANG_USE_MESSAGE_QUEUE_BROADCASTER.get(),
             group_name="pdmux_prefill_tp",
         )
         if _TP.pynccl_comm:
@@ -1856,6 +1851,7 @@ def initialize_model_parallel(
             group_ranks,
             get_world_group().local_rank,
             backend,
+            use_message_queue_broadcaster=envs.SGLANG_USE_MESSAGE_QUEUE_BROADCASTER.get(),
             group_name="attn_cp",
         )
 
@@ -1889,6 +1885,7 @@ def initialize_model_parallel(
             use_mscclpp_allreduce=False,
             use_custom_allreduce=False,
             use_torch_symm_mem_allreduce=False,
+            use_message_queue_broadcaster=envs.SGLANG_USE_MESSAGE_QUEUE_BROADCASTER.get(),
             group_name="attention_tp",
         )